Heidi Isabel Villafán-Vidales
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View article: Solarized Auger Reactor for Organic Waste Upgrading Through Pyrolysis
Solarized Auger Reactor for Organic Waste Upgrading Through Pyrolysis Open
This study reports the initial thermal and thermochemical performance of a novel solarized Auger-type reactor for Pyrolysis (SARP), specifically developed for the valorization of organic solid waste into solar-derived fuels. A key innovati…
View article: Catalytic Hydrodeoxygenation of Solar Energy Produced Bio-Oil in Supercritical Ethanol with Mo2C/CNF Catalysts: Effect of Mo Concentration
Catalytic Hydrodeoxygenation of Solar Energy Produced Bio-Oil in Supercritical Ethanol with Mo2C/CNF Catalysts: Effect of Mo Concentration Open
Transition metal carbides have emerged as an attractive alternative to conventional catalysts in hydrodeoxygenation (HDO) reactions due to surface reactivity, catalytic activity, and thermodynamic stability similar to those of noble metals…
View article: Experimental Evaluation and Modeling of Air Heating in a Ceramic Foam Volumetric Absorber by Effective Parameters
Experimental Evaluation and Modeling of Air Heating in a Ceramic Foam Volumetric Absorber by Effective Parameters Open
Reticulate porous ceramic reactors use foam-type absorbers in their operation which must fulfill two essential functions: favoring the volumetric effect and increasing the mass and heat transfer by acting as a support for the reactive mate…
View article: Solar synthesis of nanostructured zirconia: microstructural and thermal characterization
Solar synthesis of nanostructured zirconia: microstructural and thermal characterization Open
The use of concentrated solar energy in processing ceramic materials is an attractive route to obtain these materials with low CO 2 emissions. In this work, nanostructures of monoclinic zirconia (m-ZrO 2 ) were obtained using concentrated …
View article: Solar pyrolysis of agave and tomato pruning wastes: Insights of the effect of pyrolysis operation parameters on the physicochemical properties of biochar
Solar pyrolysis of agave and tomato pruning wastes: Insights of the effect of pyrolysis operation parameters on the physicochemical properties of biochar Open
Agave angustifolia leaves and tomato pruning biomasses were processed into carbon materials by solar pyrolysis. The influence of temperature and heating rate was studied in the physicochemical properties of the obtained biochars. The chara…
View article: Photothermal and thermography techniques applied in the characterization of the thermophysical properties of solar absorbers: A review
Photothermal and thermography techniques applied in the characterization of the thermophysical properties of solar absorbers: A review Open
The efficient generation of renewable energies from solar radiation implies the precise knowledge of the thermophysical properties of the materials and systems involved in such applications, this knowledge is fundamental, since it allows u…
View article: Synthesis and Characterization of Tio2/C Composite for Photocatalytic Degradation of Dyes.
Synthesis and Characterization of Tio2/C Composite for Photocatalytic Degradation of Dyes. Open
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View article: Publisher's Note: “Thermal characterization of soda lime silicate glass-graphite composites for thermal energy storage” [J. Renewable Sustainable Energy <b>10</b>, 024701 (2018)]
Publisher's Note: “Thermal characterization of soda lime silicate glass-graphite composites for thermal energy storage” [J. Renewable Sustainable Energy <b>10</b>, 024701 (2018)] Open
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View article: Insights on the thermal effect of geometric parameters of a multi-channel monolithic zirconia absorber with supported ZnFe2O4 thin-film under concentrated solar irradiance
Insights on the thermal effect of geometric parameters of a multi-channel monolithic zirconia absorber with supported ZnFe2O4 thin-film under concentrated solar irradiance Open
The numerical evaluation of a multi-channeled solar reactor coated with ZnFe2O4 film is performed by using a pore-level simulation. A ray-tracing in the concentrator allow to obtain the solar flux distribution at the aperture of the channe…
View article: Determination of the changes on the thermal and optical properties of selective solar absorber coatings induced by prolonged thermal treatment
Determination of the changes on the thermal and optical properties of selective solar absorber coatings induced by prolonged thermal treatment Open
High temperature ageing is frequently used in many technical application areas for the assessment of the thermal stability of materials; a high temperature treatment accelerates all kinds of processes, frequently performed to induce stabil…
View article: Optical and thermal properties of selective absorber coatings under CSP conditions
Optical and thermal properties of selective absorber coatings under CSP conditions Open
Concentrating solar power (CSP) systems use solar absorbers to convert sunlight into thermal electric power. In CSP systems, a high reflective surface focuses sunlight onto a receiver that captures the solar energy and converts it into hea…
View article: Solar fuels production as a sustainable alternative for substituting fossil fuels: COSOLπ project
Solar fuels production as a sustainable alternative for substituting fossil fuels: COSOLπ project Open
This article presents, in summary form, the characteristics of COSOLπ development project and some of the results obtained to date. The benefits of the work of this project will include the generation of a not polluting transportable energ…
View article: Geometric optimization of a solar cubic-cavity multi-tubular reactor
Geometric optimization of a solar cubic-cavity multi-tubular reactor Open
A multi-tubular solar thermochemical cavity reactor is proposed and the tubular array optimized. The optimized reactor design aims at operating under different temperatures and carrying out different kinds of thermochemical reactions. The …
View article: Solar production of WO <sub>3</sub> : a green approach
Solar production of WO <sub>3</sub> : a green approach Open
The tungsten trioxide (WO 3 ) is a promising material with important technologic and scientific applications, due to its electrochromic, gasochromic and photochromic properties. Usually, this material is synthesized following several route…